Minnesota K9 Sergeant and Father of Two Dies Suddenly From Brain Infection, Community Mourns

Minnesota Police Sergeant Dies Within Hours of Brain Infection Diagnosis

A beloved police sergeant from northern Minnesota has passed away, leaving his community in shock after succumbing to a rapid brain infection less than a day after receiving his diagnosis. Sgt. Cody Siebert, a K9 officer with the East Range Police Department, died on February 27, cutting short a life defined by service, connection, and community dedication.

Siebert is survived by his life partner, Karen Blais, and their two young sons — aged just one and two years old.

A Officer Who Built More Than Just a Career

Siebert played a pivotal role in establishing the K9 program in Babbitt, Minnesota, working alongside his police dog, Taconite. He later transitioned to the East Range Police Department, where he became a cornerstone of the department and the broader community he served.

The department honored his memory on Facebook, writing, "Sgt. Siebert was well known for his happy-go-lucky personality. It was best said that if you couldn't get along with Cody, it was your fault."

The tribute continued: *"The hole left by Sgt. Siebert's passing will be impossible to fill."

A Sudden and Devastating Loss

According to the Minnesota Star Tribune, Siebert woke up one morning last week with a persistent headache that had started the previous day. After being rushed to the hospital, doctors discovered that a nasal passage infection had rapidly spread to his brain — a diagnosis that proved fatal within hours.

His brother, Brandon Siebert, remembered him as someone who genuinely cared about people beyond the badge.

"He loved people — being in that position and being able to help people in general," Brandon told reporters. "Not just getting the bad guys — going to the school, checking in with people."

Family Reflects on an Extraordinary Life

Siebert's family launched a GoFundMe campaign to support Blais and their two sons. As of Tuesday evening, the page had raised more than $107,000.

In a heartfelt message on the fundraising page, the family wrote: "To know Cody was to have a friend. He had a rare gift for connection — if you crossed paths with him, you knew you were in for a genuine conversation. He truly enjoyed people, and his absence leaves a void in our community that will be felt by many."

Tragedy Strikes Twice in the Same Family

This loss is made even more painful by the fact that the family endured a similar heartbreak just months earlier. Siebert's sister-in-law, Alyssa Siebert, passed away in October from a brain aneurysm.

"We're in a déjà vu of an unusual situation," said another sister-in-law, Ashley Siebert. "They both helped others the whole time. They were both great people. They've done more than most 30-year-olds have accomplished in their lives."

In one final act of generosity, Siebert chose to donate his organs — a decision that mirrors the selfless spirit he embodied throughout his life, and one that echoes the choice his sister-in-law made before him.

A Mentor, Role Model, and Community Pillar

The impact Siebert had extended well beyond law enforcement. Mesabi East Schools paid tribute to the sergeant, highlighting the meaningful relationships he built with students and staff alike.

"The impact he had on our students and staff cannot be measured. He wasn't just our K9 officer — he was a mentor, a role model, a friend, and a steady, positive presence in our Giants community," the school district wrote in a public statement.

Sgt. Cody Siebert's passing is a profound reminder of how deeply one person can touch an entire community. His legacy — one of warmth, dedication, and genuine human connection — will endure far beyond his years of service.